iOS8 兼容 请求开启远程推送代码

    代码如下：

    

    //register for push notification    if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8)    {        [[UIApplication sharedApplication] registerForRemoteNotifications];                UIUserNotificationType types = UIUserNotificationTypeBadge                                                                                                                      | UIUserNotificationTypeSound | UIUserNotificationTypeAlert ;                UIUserNotificationSettings * setting =  [UIUserNotificationSettings settingsForTypes:types categories:nil];        [[UIApplication sharedApplication] registerUserNotificationSettings:setting];                        NSLog(@"isIOS8");    }    else    {        [[UIApplication sharedApplication] registerForRemoteNotificationTypes: (UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];                NSLog(@"not isIOS8");    }                BOOL  bPushEnable = NO;    if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8)    {        UIUserNotificationSettings * pushSetting =  [[UIApplication sharedApplication] currentUserNotificationSettings];        if (pushSetting)        {            UIUserNotificationType   pushType =  pushSetting.types;            NSLog(@"push type = %d", pushType);            if (pushType == UIUserNotificationTypeNone)            {                bPushEnable = NO;            }            else            {                bPushEnable = YES;            }        }    }    else    {        UIRemoteNotificationType pushType = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];                NSLog(@"push type = %d", pushType);        if (pushType == UIRemoteNotificationTypeNone)        {            bPushEnable = NO;        }        else        {            bPushEnable = YES;        }    }        //如果不能推送    if (bPushEnable == NO)    {        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:[UtilsHelper getLocalizeString:@"text_push_notification_title"] message:[UtilsHelper getLocalizeString:@"text_push_notification_content"] delegate:self cancelButtonTitle:[UtilsHelper getLocalizeString:@"text_yes"] otherButtonTitles:nil, nil];        [alert show];    }